From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: "David S. Miller" <davem@redhat.com>
Cc: jgarzik@mandrakesoft.com, andrew.grover@intel.com,
mochel@osdl.org, Greg@kroah.com, linux-kernel@vger.kernel.org
Subject: Re: pci segments/domains
Date: Fri, 17 May 2002 15:39:03 +0400 [thread overview]
Message-ID: <20020517153903.A24121@jurassic.park.msu.ru> (raw)
In-Reply-To: <20020517144755.A16767@jurassic.park.msu.ru> <20020517.034048.34092752.davem@redhat.com> <20020517151154.B16767@jurassic.park.msu.ru> <20020517.040421.38226563.davem@redhat.com>
On Fri, May 17, 2002 at 04:04:21AM -0700, David S. Miller wrote:
> I'm not saying pci_domain structure will help, I am only
> saying that domain number is not the way to figure out
> the ability to do DMA between two devices :-)
Agreed. What about
dma_addr_t pci_to_pci_map_single(struct pci_dev *master,
struct pci_dev *target,
dma_addr_t tgt_addr, size_t size, int dir)
Could be implemented without much pain if there is enough interest. :-)
> I know for a fact that you can do PCI-to-PCI DMA between
> two PCI domains on Alpha.
Ah, indeed. I should check the docs before posting... :-\
Ivan.
next prev parent reply other threads:[~2002-05-17 11:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-14 2:07 Grover, Andrew
2002-05-14 2:08 ` David S. Miller
2002-05-16 19:33 ` Jeff Garzik
2002-05-17 1:31 ` David S. Miller
2002-05-16 23:10 ` Pavel Machek
2002-05-17 10:47 ` Ivan Kokshaysky
2002-05-17 10:40 ` David S. Miller
2002-05-17 11:11 ` Ivan Kokshaysky
2002-05-17 11:04 ` David S. Miller
2002-05-17 11:39 ` Ivan Kokshaysky [this message]
2002-05-17 11:41 ` David S. Miller
2002-05-17 12:26 ` Ivan Kokshaysky
2002-05-17 12:15 ` David S. Miller
2002-05-17 14:24 ` Jeff Garzik
2002-05-17 14:16 ` David S. Miller
2002-05-17 14:33 ` Jeff Garzik
2002-05-17 14:26 ` David S. Miller
2002-05-17 14:42 ` Jeff Garzik
2002-05-17 16:24 ` Ivan Kokshaysky
2002-05-17 16:53 ` David S. Miller
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